#  切片逻辑  左闭右开
players = ['charles', 'martina', 'michael', 'florence', 'eli']
print(players[2:3])

print(players[:4])
print(players[2:])

# 复制数组
players_copy = players[:]
print(players_copy)
players_copy.append("tt")
print(players)
print(players_copy)

players_copy_value = players
players.append("cc")
print(players_copy_value)
print(players)